The wood is very hard and it dulls cutting tools.

They're probably intended as weapons rather than cutting tools.

The obsidian had never been modified for use as cutting tools.

The technician put out his cigarette and came forward with cutting tools.

In 1996, a new plant was opened for the production of gemstone cutting machines and tools.

Drill bits are cutting tools used to make holes in a range of materials.

Even thousands of years later, the marks left by cutting tools could still be seen.

In general there are three types of cutting bits or tools.

They left several pieces of cutting tools which are now placed in museums.

I tore at my tunic, a hard task without cutting tools.